#include<stdio.h>
#include<string.h>
#include<unistd.h>

int main()
{
	int a=12345;
	char buffer[1024];
	snprintf(buffer,sizeof(buffer),"%d",a);    //自定义输出
//	const char* m="hello bit";
//	write(1,m,strlen(m));
	write(1,buffer,strlen(buffer));
	return 0;
}
